China air release valve manufacturers, air release valve suppliers, air release valve factory. The Vatac air & vacuum valve is designed to be used as discharging large volumes of air from the pipeline system when the pipeline is initially filled and after water column separation.

Vatac air valves has been contributing to the improvement of the efficiency of the water system for over 20 years. The Vatac Air Release Valves are constructed from rugged castings that are machined to exacting specifications. These bodies either have both threaded ends to International standards ASME or DIN, or with drilled flanges that are in accordance with ASME B16.1. Alternatively to EN, DIN, BS or JIS Standards

Vatac offers a broad line of air valves including, but not limited to Automatic, Mirco Air Release, Combination, Single and Double orifice styles. Size ranges from 1/2” to 12”NPS, Pressure Classes in PN10 or PN16

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Vatac combination air valves is designed for high pressure, with the features of both an air release valve and an air & vacuum valve. The air release component is designed to automatically release small air pockets to the atmosphere as they accumulate along a pipeline or piping system when it is full and operating under pressure. The air & vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of apipeline or piping system. This valve will open to relieve negative pressures whenever water column separation occurs.

Combines the features of both an air & vacuum valve and an air release valve. This series product supplied from Vatac are also with Triple function performance:
» Discharging large volumes of air during filling of the system.
» Admitting large volumes of air during drainage and at water column separation.
» Releasing entrapped air in pressurized systems.
» FEB coating to DIN 30677-2; Other coatings are available upon request.
» Body and cover: Cast Iron or Steel, Stainless Steel
» Corrosion- resistant wetted parts

The Vatac Air & Vacuum Valve discharges air during the filling or charging of the system and admits air into the system during system drainage, valve or pump shut-off or at water column separation.
» Discharging large air volumes during filling of the system.
» Admitting large air volumes during drainage and at water column separation.
» All main flow cross-sections are equal or greater than the nominal port area.
» High flow rates of air both at intake and at discharge.
» Available in flange sizes: 2"- 8"

Vatac automatic air release valve releases accumulated air from the system while it is under pressure. The presence of air in a water system can reduce the effective cross sectional flow area resulting in increased pressure loss and deceased flow. Unwanted air may also cause water hammer and metering inaccuracies, while hastening corrosion